Best JavaScript code snippet using playwright-internal
coverage.js
Source: coverage.js
...80}81/**82 * @param {string} browserName83 */84function installCoverageHooks(browserName) {85 const {api, events} = apiForBrowser(browserName);86 const coverage = new Map();87 const uninstall = traceAPICoverage(coverage, api, events);88 return {coverage, uninstall};89}90class CoverageEnv {91 /**92 * @param {string} browserName93 */94 constructor(browserName) {95 this.browserName = browserName;96 }97 /**98 * @param {import('folio').WorkerInfo} workerInfo99 */100 async beforeAll(workerInfo) {101 this.coverage = installCoverageHooks(this.browserName);102 }103 /**104 * @param {import('folio').WorkerInfo} workerInfo105 */106 async afterAll(workerInfo) {107 const { coverage, uninstall } = this.coverage;108 uninstall();109 const coveragePath = path.join(__dirname, '..', 'coverage-report', workerInfo.workerIndex + '.json');110 const coverageJSON = Array.from(coverage.keys()).filter(key => coverage.get(key));111 await fs.promises.mkdir(path.dirname(coveragePath), { recursive: true });112 await fs.promises.writeFile(coveragePath, JSON.stringify(coverageJSON, undefined, 2), 'utf8');113 }114}115module.exports = {...
checkCoverage.js
Source: checkCoverage.js
...16const path = require('path');17const fs = require('fs');18const {installCoverageHooks} = require('./coverage');19const browserName = process.argv[2] || 'chromium';20let api = new Set(installCoverageHooks(browserName).coverage.keys());21// coverage exceptions22if (browserName === 'chromium') {23 // Sometimes we already have a background page while launching, before adding a listener.24 api.delete('browserContext.emit("backgroundpage")');25}26if (browserName !== 'chromium') {27 // we don't have CDPSession in non-chromium browsers28 api.delete('browser.newBrowserCDPSession');29 api.delete('browser.startTracing');30 api.delete('browser.stopTracing');31 api.delete('browserContext.backgroundPages');32 api.delete('browserContext.serviceWorkers');33 api.delete('browserContext.newCDPSession');34 api.delete('browserContext.emit("backgroundpage")');...
Using AI Code Generation
1const { installCoverageHooks } = require('playwright/lib/server/coverage');2const { chromium } = require('playwright');3(async () => {4 const browser = await chromium.launch();5 const context = await browser.newContext();6 const page = await context.newPage();7 installCoverageHooks(page);8 await page.coverage.startJSCoverage();9 const jsCoverage = await page.coverage.stopJSCoverage();10 console.log(jsCoverage);11 await browser.close();12})();13const { chromium } = require('playwright');14(async () => {15 const browser = await chromium.launch();16 const context = await browser.newContext();17 const page = await context.newPage();18 await page.coverage.startJSCoverage();19 const jsCoverage = await page.coverage.stopJSCoverage();20 console.log(jsCoverage);21 await browser.close();22})();23const { chromium } = require('playwright');24(async () => {25 const browser = await chromium.launch();26 const context = await browser.newContext();27 const page = await context.newPage();28 await page.coverage.startJSCoverage();29 const jsCoverage = await page.coverage.stopJSCoverage();30 console.log(jsCoverage);31 await browser.close();32})();33const { chromium } = require('playwright');34(async () => {35 const browser = await chromium.launch();36 const context = await browser.newContext();37 const page = await context.newPage();
Using AI Code Generation
1const { installCoverageHooks } = require('playwright/lib/server/coverage');2const { chromium } = require('playwright-chromium');3const path = require('path');4(async () => {5 const browser = await chromium.launch();6 const context = await browser.newContext();7 installCoverageHooks(path.join(__dirname, 'coverage.json'), context);8 const page = await context.newPage();9 await page.close();10 await context.close();11 await browser.close();12})();13Now, we have to use the coverage file to generate the report. We will be using the [nyc](
Using AI Code Generation
1const { installCoverageHooks } = require('playwright/lib/server/cjs/test/coverage');2installCoverageHooks();3const { installCoverageHooks } = require('playwright/lib/server/cjs/test/coverage');4installCoverageHooks();5const { installCoverageHooks } = require('playwright/lib/server/cjs/test/coverage');6installCoverageHooks();7const { installCoverageHooks } = require('playwright/lib/server/cjs/test/coverage');8installCoverageHooks();9const { installCoverageHooks } = require('playwright/lib/server/cjs/test/coverage');10installCoverageHooks();11const { installCoverageHooks } = require('playwright/lib/server/cjs/test/coverage');12installCoverageHooks();13const { installCoverageHooks } = require('playwright/lib/server/cjs/test/coverage');14installCoverageHooks();15const { installCoverageHooks } = require('playwright/lib/server/cjs/test/coverage');16installCoverageHooks();17const { installCoverageHooks } = require('playwright/lib/server/cjs/test/coverage');18installCoverageHooks();19const { installCoverageHooks } = require('playwright/lib/server/cjs/test/coverage');20installCoverageHooks();21const { installCoverageHooks } = require('playwright/lib/server/cjs/test/coverage');22installCoverageHooks();23const { installCoverageHooks } = require('playwright/lib/server/cjs/test/coverage');24installCoverageHooks();25const { installCoverageHooks } = require('playwright/lib/server/cjs/test/coverage');26installCoverageHooks();27const { installCoverageHooks } = require('playwright/lib/server/cjs/test
Using AI Code Generation
1const { installCoverageHooks } = require('playwright/lib/server/coverage');2installCoverageHooks();3const { chromium } = require('playwright');4(async () => {5 const browser = await chromium.launch();6 const context = await browser.newContext();7 const page = await context.newPage();8 await page.close();9 await context.close();10 await browser.close();11})();12const { installCoverageHooks } = require('playwright/lib/server/coverage');13installCoverageHooks();14const { chromium } = require('playwright');15(async () => {16 const browser = await chromium.launch();17 const context = await browser.newContext();18 const page = await context.newPage();19 await page.close();20 await context.close();21 await browser.close();22})();23const { installCoverageHooks } = require('playwright/lib/server/coverage');24installCoverageHooks();25const { chromium } = require('playwright');26(async () => {27 const browser = await chromium.launch();28 const context = await browser.newContext();29 const page = await context.newPage();30 await page.close();31 await context.close();32 await browser.close();33})();34const { installCoverageHooks } = require('playwright/lib/server/coverage');35installCoverageHooks();36const { chromium } = require('playwright');37(async () => {38 const browser = await chromium.launch();39 const context = await browser.newContext();40 const page = await context.newPage();41 await page.close();42 await context.close();43 await browser.close();44})();45const { installCoverageHooks } = require('playwright/lib/server/coverage');46installCoverageHooks();47const { chromium } = require('playwright
Using AI Code Generation
1const { installCoverageHooks } = require('playwright/lib/server/coverage');2const { createTestServer } = require('playwright/test');3const server = await createTestServer();4installCoverageHooks(server);5await server.listen(8080);6await page.coverage.startJSCoverage();7await page.coverage.stopJSCoverage();8await server.stop();9const { installCoverageHooks } = require('playwright/lib/server/coverage');10const { createTestServer } = require('playwright/test');11const server = await createTestServer();12installCoverageHooks(server);13await server.listen(8080);14await page.coverage.startJSCoverage();15await page.coverage.stopJSCoverage();16await server.stop();17const { test, expect } = require('@playwright/test');18test('Should generate coverage report for a file', async ({ page }) => {19 await page.coverage.startJSCoverage();20 await page.coverage.stopJSCoverage();21 const coverage = await page.coverage.stopJSCoverage();22 expect(coverage).toBeTruthy();23 expect(coverage.length).toBe(1);24 expect(coverage[0].text).toBeTruthy();25 expect(coverage[0].ranges.length).toBeGreaterThan(0);26});27const { test, expect } = require('@playwright/test');28test('Should generate coverage report for a file', async ({ page }) => {29 await page.coverage.startJSCoverage();30 await page.coverage.stopJSCoverage();31 const coverage = await page.coverage.stopJSCoverage();32 expect(coverage).toBeTruthy();33 expect(coverage.length).toBe(1);
Using AI Code Generation
1const { installCoverageHooks } = require("@playwright/test");2installCoverageHooks(globalThis);3const { coverage } = require("@playwright/test");4const coverageObject = await coverage.startJSCoverage();5await coverage.stopJSCoverage(coverageObject);6module.exports = {7 {8 globalSetup: require.resolve("./globalSetup.js"),9 },10};11const { chromium } = require("playwright");12module.exports = async () => {13 const browser = await chromium.launch();14 const context = await browser.newContext();15 globalThis.browser = browser;16 globalThis.context = context;17};18module.exports = async () => {19 await globalThis.context.close();20 await globalThis.browser.close();21};22{23 "scripts": {24 },25 "devDependencies": {26 }27}28const { coverage } = require("@playwright/test");29const coverageObject = await coverage.startJSCoverage();30await coverage.stopJSCoverage(coverageObject);31const { coverage } = require("@playwright/test");32const coverageObject = await coverage.startJSCoverage({33 {34 },35});36await coverage.stopJSCoverage(coverageObject);
Using AI Code Generation
1const { installCoverageHooks } = require('playwright/lib/server/coverage');2installCoverageHooks();3const { chromium } = require('playwright');4const browser = await chromium.launch();5const { chromium } = require('playwright');6const browser = await chromium.launch();7const { chromium } = require('playwright');8const browser = await chromium.launch();9const { chromium } = require('playwright');10const browser = await chromium.launch();11const { chromium } = require('playwright');12const browser = await chromium.launch();13const { chromium } = require('playwright');14const browser = await chromium.launch();15const { chromium } = require('playwright');16const browser = await chromium.launch();17const { chromium } = require('playwright');18const browser = await chromium.launch();19const { chromium } = require('playwright');20const browser = await chromium.launch();21const { chromium } = require('playwright');22const browser = await chromium.launch();23const { chromium } = require('playwright');24const browser = await chromium.launch();25const { chromium } = require('playwright');26const browser = await chromium.launch();
Using AI Code Generation
1const { installCoverageHooks } = require('playwright/lib/server/coverage');2installCoverageHooks();3const playwright = require('playwright');4const coverage = await globalThis.__coverage__;5fs.writeFileSync('coverage.json', JSON.stringify(coverage));6const browser = await playwright.chromium.launch();7const context = await browser.newContext();8const page = await context.newPage();9await page.coverage.startJSCoverage();10await page.coverage.stopJSCoverage();11await browser.close();12const { chromium } = require('playwright');13const fs = require('fs');14(async () => {15 const browser = await chromium.launch();
Jest + Playwright - Test callbacks of event-based DOM library
firefox browser does not start in playwright
Is it possible to get the selector from a locator object in playwright?
How to run a list of test suites in a single file concurrently in jest?
Running Playwright in Azure Function
firefox browser does not start in playwright
This question is quite close to a "need more focus" question. But let's try to give it some focus:
Does Playwright has access to the cPicker object on the page? Does it has access to the window object?
Yes, you can access both cPicker and the window object inside an evaluate call.
Should I trigger the events from the HTML file itself, and in the callbacks, print in the DOM the result, in some dummy-element, and then infer from that dummy element text that the callbacks fired?
Exactly, or you can assign values to a javascript variable:
const cPicker = new ColorPicker({
onClickOutside(e){
},
onInput(color){
window['color'] = color;
},
onChange(color){
window['result'] = color;
}
})
And then
it('Should call all callbacks with correct arguments', async() => {
await page.goto(`http://localhost:5000/tests/visual/basic.html`, {waitUntil:'load'})
// Wait until the next frame
await page.evaluate(() => new Promise(requestAnimationFrame))
// Act
// Assert
const result = await page.evaluate(() => window['color']);
// Check the value
})
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